<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
       .container{
        display: flex;
        flex-direction: row;
        justify-content: space-between;
       }
       .box{
        width: 100px;
        height: 100px;
        background-color: burlywood;
        display: flex;
        justify-content: center;
        align-items: center;
       }

    </style>
</head>
<body>
    <div class="container">

    <div class="box">
        <span>测试</span>
    </div>

    <div class="box">
        <span>测试</span>
    </div>

    <div class="box">
        <span>测试</span>
    </div>
    
    </div>

</body>
</html>